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Dutasteride has a larger volume of distribution than finasteride due to its lipophilic nature, allowing it to concentrate in hydrophobic areas and making it difficult to excrete. A user experiencing hair loss has been using oral finasteride for 10 months with minimal regrowth and is considering switching to dutasteride or adding oral minoxidil.

Topical finasteride that doesn't penetrate the skin could potentially treat hair loss without side effects. Current challenges include finding a formulation that remains on the scalp without increasing blood levels.

Topical dutasteride is considered for hair loss, but concerns about systemic absorption and side effects like reduced libido are common. Users have mixed results, with some preferring oral finasteride or dutasteride despite side effects, while others find topical treatments beneficial but challenging.

Topical dutasteride 0.05% is more effective for hair growth than oral finasteride 1mg, with minimal DHT reduction. The formulation uses castor oil and MCTs for better absorption but is not widely available until 2028.

Peptides like TB500, KPV, GHK-CU, and BPC-157 are overhyped for hair growth with limited proven effectiveness in humans. Combining peptides with delivery methods like iontophoresis and sonophoresis shows promise, but many claims remain unproven.